High-performance C/C composites derived from phthalonitrile matrix CFRP via a few cycles of vacuum-assisted impregnation-carbonization

Aleshkevich, Vladislav; Morozov, Oleg; Babkin, Alexander; Kepman, Alexey; Bulgakov, Boris

doi:10.1016/j.compositesa.2024.108201

Composites Part A: Applied Science and Manufacturing

2024

DOI: 10.1016/j.compositesa.2024.108201

|View full text |Cite

High-performance C/C composites derived from phthalonitrile matrix CFRP via a few cycles of vacuum-assisted impregnation-carbonization

Vladislav Aleshkevich,

Oleg Morozov,

Alexander Babkin

et al.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2024

Publication Types

Select...

Article2

Relationship

Self Cite0

Independent2

Authors

Journals

Cited by 2 publications

References 60 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

The influence of phthalonitrile monomer containing oxazine ring on the properties of epoxy/amine system: Curing behavior and thermal stability

Chen,

Peng,

et al. 2024

J of Applied Polymer Sci

View full text Add to dashboard Cite

Phthalonitrile monomer containing oxazine ring (BPS‐Ph) was synthesized using bisphenol‐S, aniline, paraformaldehyde, and 4‐nitrophthalonitrile via a two‐step method. The differential scanning calorimetry (DSC) data of the curing process of BPS‐Ph monomer indicates that the peak polymerization temperature of the cyan group is about 250°C and that confirms the promoting effect of oxazine ring on the curing reaction of phthalonitrile. The rheological data of E51/DDS containing BPS‐Ph indicates that the BPS‐Ph monomer also has promoting effect on the curing process. The activation energy was studied via the iso‐conversional method principle. The activation energy corresponding to the E51/DDS crosslinking reaction is 75.79 and 60.54 kJ mol−1, respectively, for pure E51/DDS and E51/DDS/BPS‐Ph. Moreover, the activation energy of the crosslinking of phthalhydrazine is 74.1 kJ mol−1 which is rather lower than that in pure BPS‐Ph, and that implies the synergistically catalytic effect of the oxazine ring and the amine. The addition of BPS‐Ph monomer significantly improves the thermal behaviors of the thermoset. The char yield in N2 atmosphere increased from 15.6% to 53.9% when adding 30% BPS‐Ph to the E51/DDS. Moreover, the peak weight loss temperature decreased from 407 to 385°C. The phase separation size of poly‐BPS‐Ph in E51/DDS is about tens to hundreds nanometers according to the atomic force microscopy (AFM) phase diagram. It is indicated that incorporation of phthalonitrile monomer containing oxazine ring into epoxy/amine system is an applicable and effective way to promote the thermal behavior of the thermoset.

show abstract

The influence of phthalonitrile monomer containing oxazine ring on the properties of epoxy/amine system: Curing behavior and thermal stability

Chen,

Peng,

et al. 2024

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

Effect of Phosphate-Bridged Monomer on Thermal Oxidative Behavior of Phthalonitrile Thermosets

Lobanova,

Babkin,

Kepman

et al. 2024

Polymers

View full text Add to dashboard Cite

Phthalonitrile thermosets are known for their excellent mechanical, physico-chemical, and fire-retardant properties, making them attractive for aerospace and mechanical engineering applications. When producing and applying phthalonitrile-based structural parts, it is essential to consider aspects such as processability and the long-term stability of the material’s properties at high temperatures. In our previous studies, we demonstrated that resins containing phosphate-bridged bisphthalonitrile monomers are easily processable due to their low melting temperature and wide processing window. In this study, we investigated the impact of bis(3-(3,4-dicyanophenoxy)phenyl)phenyl phosphate (PPhPN) monomer content on physico-chemical and mechanical properties, thermal stability, and thermal oxidative stability. This research highlights the importance of conducting long-term thermal oxidative aging studies in addition to thermogravimetric analysis to properly assess the stability of thermosets. The findings indicate that adding less than 15% of PPhPN results in the formation of a crystalline phase, which impairs the resin’s processability. Conversely, a high PPhPN content reduces the material’s thermal oxidative stability. Therefore, based on mechanical and physico-chemical tests after thermal oxidative aging, it can be concluded that a 10–15% concentration of the phosphate-containing monomer enables easy processability of the phthalonitrile resin and provides excellent long-term thermal oxidative stability at temperatures up to 300 °C, while maintaining a flexural strength exceeding 120 MPa and an elasticity modulus of 4.3 GPa.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

hi@scite.ai

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

High-performance C/C composites derived from phthalonitrile matrix CFRP via a few cycles of vacuum-assisted impregnation-carbonization

Cited by 2 publications

References 60 publications

The influence of phthalonitrile monomer containing oxazine ring on the properties of epoxy/amine system: Curing behavior and thermal stability

The influence of phthalonitrile monomer containing oxazine ring on the properties of epoxy/amine system: Curing behavior and thermal stability

Effect of Phosphate-Bridged Monomer on Thermal Oxidative Behavior of Phthalonitrile Thermosets

Contact Info

Product

Resources

About